Packing-nut for water and oil gages.



J. E. MONTGOMERY. PACKING NUT FOR WATER AND OIL GAGES.

APPLICATION FILED AUG.10. 1906.

' p INVENTOR J. \MILQO/Wfl ATT'XS.

' WITNESSES JOHN EDWARD MONTGOMERY, OF YO ST, UTAH.

PACmNG-NUT FOR WATER AND OIL GAGES.

' Specification of Letters Patent.

Patented Nov. 19,1907.

Application filed August 10. 1906 Serial No. 330029- To all whom it may concern:

Be it known that 1, JOHN EDWARD MONT- GOMERY, a citizen of the United States, residing at Yost,in the county of Boxelder and State of Utah, have invented a new and useful Improvement in a Packing-Nut for WVater andOil Gages, of which the following is a specification.

This invention relates to packing nutsand more particularly to packing nuts for water or oil gages, the object being to provide a nut so constructed that the glass can be easily andquickly put in place and one in which a perfect water tight joint will be formed.

Another object of my invention is to rovide a nut so constructed that the pee ing can .be easily and-quickly inserted, thereby overcoming the diflic ulties now existing with nuts in use of putting the packing up into the same.

With these objects of my invention in View, it consists in the novel features of construction, combination and arrangement of parts, hereinafter fully described, and pointed out in the claims.

In the drawings forming a part of this specification :Figure 1 is a side elevational 'view partly in section, of my improved elbow and nut. showin a glass secured thereon. Fig. 2 is a detai sectional view of my improved elbow and nut separated showing the glass in place. Fig. 3 is a detail sectional view of my improved elbow and nut united of elbows showing the glass secured thereon. Fig. 4 is. a section taken on lines 44 of Fig. 3. Fig. 5 is a detail sectional view of the nut.

Referring to the drawing A indicates a pair rovided with threaded ends A, adapted to e screwed into threaded o enings formed in a boiler or oil chamber, as t e case may be. The other ends of the elbows A are rovided: with enlarged threaded ends A, having a recess surrounding the bore of each elbow provided with a beveled wall A in which the ends of the glass tube B is adapted to fit. A packing ring C, of rubber or any suitable material is placed on the ends of the glass in the recess adapted to be engaged by the annularly inwardly projecting tongues D, of the nuts D, which works on the en-. large'd threaded ends A, of the elbows. The tongues D, are provided with a beveled edge D to correspond to the beveled walls A of the recesses and are cut away at D, adjacentthe point on their straight edges so that'the packing rings C will be forced up against. the glass B when screwed down on the threaded enlarged ends A, so as to securely hold the glass therein, and form a water tight joint.

"From the foregoing description it will'be readily seen that I have rovided a packing nut so constructed that t e glass or packing can be readily replaced when desired and one which will form a water tight joint and hold the glass in lace. Havin t us fully described my invention, what I ci aim as new and desire to secure by Letters Patent is In a device of the kind described, the combination with a pair of pipe elbows, having enlarged threaded ends rovided with re cesses havin beveled wal s'surroun'ding the bore of the e bows, of a glass tube having its ends arranged in said recesses, packing rings secured around said ends in said recess, and a nut working on said threaded enlarged end havin annularlyinwardlyprojecting tongues provi ed with beveled edges and cut away portions adapted to fit said recesses and engage said packing rings, for the purpose de scribed.

Witnesses:

JAMES N. MONTGOMERY, FRED CHADWIOK.

101m EDWARD MONTGOMERY. 

